How To Fix SPN063 - No User Principal Name exists

SPN063 - Overview

• Message type: E = Error

• Message class: SPN - SPnego

• Message number: 063

• Message text: No User Principal Name exists

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SPN063 - No User Principal Name exists ?

  The SAP error message SPN063 "No User Principal Name exists" typically occurs in the context of SAP systems that are integrated with Microsoft Active Directory (AD) for authentication purposes, particularly when using Kerberos authentication. This error indicates that the system is unable to find a User Principal Name (UPN) for the user trying to log in.
  
  Cause:
  
  Missing UPN in Active Directory: The user account in Active Directory does not have a User Principal Name assigned. The UPN is usually in the format of [e-mail].
  Incorrect Configuration: The SAP system may not be correctly configured to communicate with Active Directory, or the user may not be part of the expected domain.
  User Account Issues: The user account may be disabled, deleted, or not properly synchronized with the SAP system.
  Kerberos 
  Configuration Issues: There may be issues with the Kerberos configuration, such as incorrect service principal names (SPNs) or key distribution center (KDC) settings.
  
  
  Solution:
  
  
  Check User Account